• Year
  • 1924–1928 ?
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 143695

 Technical Specifications

  • Number of Tubes
  • 4
  • Main principle
  • TRF with regeneration; 3 AF stage(s)
  • Tuned circuits
  • 1 AM circuit(s)
  • Wave bands
  • Broadcast (MW) and Long Wave.
  • Power type and voltage
  • Storage and/or dry batteries
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: 4 LB - PTR - Polskie Towarzystwo
  • Shape
  • Tablemodel, Box - most often with Lid (NOT slant panel).
  • Source of data
  • -- Original-techn. papers.
  • Author
  • Model page created by Henryk Berezowski. See "Data change" for further contributors.

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